Answered: Sample Number of Defects 8. 9. 9 10 10…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

Janice Sanders, CEO of Pine Crest Medical Clinic, is
concerned over the number of times patients must wait
more than 30 minutes beyond their scheduled appointments.
She asked her assistant to take random samples of 70 patients
to see how many in each sample had to wait more than
30 minutes. Each instance is considered a defect in the clinic
process. The table below contains the data for 15 samples. a. Assuming Janice Sanders is willing to use three-sigma
control limits, construct a p-chart.
b. Based on your p-chart and the data in the table, what can
you conclude about the waiting time of the patients?

Sample
Number of Defects
8.
9.
9
10
10
4
11
2
12
9.
13
4
14
15
2

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